Table 1. Demographic and clinical characteristics (N = 500).
| Characteristics | Number | % |
|---|---|---|
| Gender | ||
| Male | 218 | 43.60 |
| Female | 282 | 56.40 |
| Age | ||
| 45~54 | 47 | 11.80 |
| 55~64 | 92 | 21.60 |
| 65~74 | 217 | 40.40 |
| 75+ | 144 | 26.20 |
| Nationality | ||
| Han | 160 | 32.00 |
| Tujia | 251 | 50.20 |
| Other minorities | 89 | 17.80 |
| Education level | ||
| Elementary school or below | 413 | 82.60 |
| Middle school | 66 | 13.20 |
| High school or above | 21 | 4.20 |
| Marital status | ||
| Single | 137 | 27.40 |
| Married | 363 | 72.60 |
| Years of hypertension | ||
| 0–3 years | 161 | 32.20 |
| 4–6 years | 113 | 22.60 |
| ≥7 years | 226 | 45.20 |
| Number of comorbid diseases | ||
| 0 | 225 | 45.00 |
| 1 | 189 | 37.80 |
| ≥2 | 86 | 17.20 |
| Family monthly income(yuan) | ||
| <3,000 | 438 | 87.60 |
| 3,000–5,000 | 39 | 7.80 |
| >5,000 | 23 | 4.60 |
| Smoking status | ||
| Yes | 122 | 24.40 |
| No | 378 | 75.60 |
| Alcohol intake | ||
| Yes | 103 | 20.60 |
| No | 397 | 79.40 |
| Regular tea-drinking | ||
| Yes | 299 | 59.80 |
| No | 201 | 40.20 |
| Moderate physical activity per week | ||
| None | 113 | 22.60 |
| 1–4 days | 63 | 12.60 |
| ≥5 days | 324 | 64.80 |
| Sleep quality status | ||
| Badly | 257 | 51.40 |
| General | 118 | 23.60 |
| Well | 125 | 25.00 |